Aromatic hydrocarbons contain at least _____ benzene like ring in their molecules.
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Which of the following compounds is the strongest acid?
Which molecule contains a polar covalent bond?
When iron is exposed to moist air, a reddish brown coating of hydrated Iron (III) Oxide (Fe2O3) is deposited on its surface. This reddish brown coating is called
Which of the following statement is CORRECT?
Give an example of a salt which gives an aqueous solution of pH less than 7.
Atomic number of which of the following elements is greater than that of Aluminium?
Haematite is an ore/mineral of
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